Chevrolet Trax: DTC P0601-P0606, P060A, P062F, OR P262B (Chassis control module)

Diagnostic Instructions

• Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
• Review Strategy Based Diagnosis for an overview of the diagnostic approach.
• Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptors

DTC P0601

Control Module Read Only Memory Performance

DTC P0602

Control Module Not Programmed

DTC P0603

Control Module Long Term Memory Reset

DTC P0604

Control Module Random Access Memory Performance

DTC P0606

Control Module Processor Performance

DTC P062F

Control Module Long Term Memory Performance

Circuit/System Description

The internal fault detection is handled inside the chassis control module. No external circuits are involved.

Conditions for Running the DTC

The chassis control module runs the program to detect an internal fault when power up is commanded. The only requirements are voltage and ground. This program runs even if the voltage is out of the valid operating range.

Conditions for Setting the DTC

The chassis control module has detected an internal malfunction.

Action Taken When the DTC Sets

DTC P0601, P0602, P0603, P0604, P0606 and P062F are type A DTCs.

Conditions for Clearing the DTC

DTC P0601, P0602, P0603, P0604, P0606 and P062F are type A DTCs.

Reference Information

Description and Operation

Engine Controls Schematics (Encore) , Engine Controls Schematics (Trax)

Electrical Information Reference

• Circuit Testing
• Connector Repairs
• Testing for Intermittent Conditions and Poor Connections
• Wiring Repairs

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions (LUV) , Powertrain Diagnostic Trouble Code (DTC) Type Definitions (2H0)

Circuit/System Verification

NOTE: This DTC may be stored as a history DTC without affecting the operation of the module. If stored only as a history DTC and not retrieved as a current DTC, do not replace the module.

1. Ignition ON.
2. Verify DTC P0602 is not set.

• If DTC P0602 is set

1. Program the K38 Chassis Control Module.
2. Verify the DTC does not set.

• If the DTC sets, replace the K38 Chassis Control Module.
• If the DTC does not set.

3. All OK.

• If DTC P0602 is not set

3. Verify DTCs P0601, P0603, P0604, P0606, and P062F are not set.

• If any of the DTCs are set

1. Program the K38 Chassis Control Module.
2. Verify the DTC does not set.

• If the DTC sets, replace the K38 Chassis Control Module.
• If the DTC does not set.

3. All OK.

• If none of the DTCs are set

4. All OK

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

Control Module References for chassis control module replacement, programming and setup

DTC P0601-P0604, P0606, P062B, P062F, P0630, P16F3, OR P262B (ECM, LUV)

Diagnostic Instructions

• Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
• Review Strategy Based Diagnosis for an overview of the diagnostic approach.
• Diagnostic Procedure Instructions provides an overview of each of the diagnostic category.

DTC Descriptors

DTC P0601

Control Module Read Only Memory Performance

DTC P0602

Control Module Not Programmed

DTC P0603

Control Module Long Term Memory Reset

DTC P0604

Control Module Random Access Memory Performance

DTC P0606

Control Module Processor Performance

DTC P062F

Control Module Long Term Memory Performance

DTC P0630

VIN Not Programmed or Mismatched - Engine Control Module (ECM)

DTC P16F3

Control Module Redundant Memory Performance

DTC P262B

Control Module Power Off Timer Performance

Circuit/System Description

This diagnostic applies to internal microprocessor integrity conditions within the engine control module (ECM).

This diagnostic also addresses if the ECM is not programmed

Conditions for Running the DTCs

P0601, P0602, P0630

These DTCs run continuously when the ignition is in ON.

P0603, P062F

These DTCs run during ECM power up.

P0604

DTC P0604 runs continuously when the ignition is ON for greater than 30 s.

P0606

DTC P0606 runs continuously when Ignition 1 Signal voltage is greater than 11 V.

P16F3

• The engine speed is greater than 500 RPM.
• DTCs P0101, P0102, P0103, P0106, P0107, P0108, P2227, P2228, P2229, or P2230 are not set.
• DTC P16F3 runs continuously when the above conditions are met.

P262B

DTC P262B runs during ECM power down.

Conditions for Setting the DTCs

The ECM detects an internal failure or incomplete programming for more than 10 s.

Actions Taken When the DTC Sets

• DTCs P0601, P0602, P0603, P0604, P0606, P0630, and P16F3 are Type A DTCs.
• DTC P062F and P262B are Type B DTCs.

Conditions for Clearing the MIL/DTC

• DTCs P0601, P0602, P0603, P0604, P0606, P0630, and P16F3 are Type A DTCs.
• DTC P062F and P262B are Type B DTCs.

Diagnostic Aids

Low voltage or a momentary loss of power or ground to the ECM may cause a DTC to set. Verify the following:

• The battery cables are clean and tight, and the battery is fully charged. Refer to Battery Inspection/Test
• The ECM ground circuits do not have an open or high resistance.
• The ECM power circuits do not have an open, short to ground, or high resistance.

Reference Information

Schematic Reference

Engine Controls Schematics (Encore) , Engine Controls Schematics (Trax)

Connector End View Reference

WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS - INDEX - ENCORE WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS - INDEX - TRAX

Component View Reference

Powertrain Component Views

Electrical Information Reference

• Circuit Testing
• Connector Repairs
• Testing for Intermittent Conditions and Poor Connections
• Wiring Repairs

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions (LUV)

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

1. Ignition ON, clear the DTC information with a scan tool.
2. Verify that DTC P0641, P0651, P0697, or P06A3 does not set.

• If any of the DTCs are set

Refer to DTC P0641, P0651, P0697, or P06A3 (ECM) for further diagnosis.

• If none of the DTCs are set

3. Verify DTC P0602 or P0630 is not set.

• If any of the DTCs are set

1. Program the K20 Engine Control Module. Refer to Control Module References .
2. Verify DTC P0602 or P0630 is not set.

• If any of the DTCs are set, replace the K20 Engine Control Module.
• If none of the DTCs are set

3. All OK.

• If none of the DTCs are set

4. Verify DTC P0601, P0603, P0604, P0606, P062F, P16F3, or P262B is not set.

• If any of the DTCs are set

Replace the K20 Engine Control Module.

• If none of the DTCs are set

5. All OK.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

Control Module References for engine control module replacement, programming and setup.

READ NEXT: